Servo Drive Regeneration Absorption Capacity - Omron G5 Series User Manual

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Servo Drive Regeneration Absorption Capacity

Amount of Internal Regeneration Absorption in Servo Drives
This Servo Drive absorbs regenerative energy internally with built-in capacitors.
If the regenerative energy is too large to be processed internally, an overvoltage error occurs and
operation cannot continue.
The following table shows the regenerative energy (and amount of regeneration) that each drive can
absorb. If these values are exceeded, take the following processes.
• Connect an External Regeneration Resistor. (Regeneration process capacity improves.)
• Reduce the operating rotation speed. (The amount of regeneration is proportional to the square of
the rotation speed.)
• Lengthen the deceleration time. (Regenerative energy per unit time decreases.)
• Lengthen the operation cycle, i.e., the cycle time. (Average regenerative power decreases.)
Servo Drive model
R88D-KP01H
R88D-KP02H
R88D-KP04H
R88D-KP08H
R88D-KP10H
R88D-KP15H
R88D-KP20H
R88D-KP30H
R88D-KP50H
OMNUC G5-series (Pulse-train Input Type) AC Servomotors and Servo Drives User's Manual
Regenerative energy
to be absorbed by built-in
capacitor (J)
18
18
26
46
74
74
74
113
113
Internal regeneration
resistor
Average amount of
regenerative energy to
be absorbed (W)
–
–
–
12
18
18
72
60
60
4 System Design
Allowable minimum
regeneration resistance
(Ω)
34
34
34
25
25
25
10
7
5
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